Welding-machine.



J. F. MAKOWSKI.

WELDING MACHINE.

APPLICATION FILED NOV. 24, 1915.

Patented July 24, 1917.

3 SHEETSSHEET I.

J. F. MAKOWSKI, WELDING MACHINE. APPLICATION FILED N.0V- 24,1915:

Patent July 24, 1917 7 s SHEETS-SHEET 2.

lNVE/VTUF? .l. E MAKE W5ff/ L AKOWS WELDING MACHINE.

APPLICATION FILED NOV. 24. 1915.

Patent w 2 a SH I J. 'F. MA

UNITED STATES PATENT OFFICE.

JOHN F. MAKOWSKI, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR F ONE-HALF TO CHARLES HOLLOWAY, JR., OF SAN FRANCISCO, CALIFORNIA.

WELDING-MACHINE,

To all whom it may concern:

Be it known that I, JOHN F, MAKOWSKI, citizen of the United States, residing at the city and county of San Francisco, State of California, have invented certain new and useful Improvements in Welding-Machines, whereof the following is a specification.

This invention relates to Welding machines and is designed more particularly for welding together strips of expanded metal and various shaped ribs, and especially the metallic lathing disclosed in my pending application Serial No. 839,969, filed May 21, 1914, for re-inforced metal lathing.

In carrying out the invention I construct a machine, having guide or supporting rollers, upon which the material to be welded is carried in its passage through the machine, and having also welding rollers which are supplied with electric current and direct the same through the points to be joined.

nesses of material.

One of these welding rollers bears upon the material with a spring pressure, and also is adjustable to vary the tension of the spring, and to accommodate different thickprovided to give a steady and uniform move ment to the machine. The welding rollers, as also the guide or supporting rollers, may be arranged in series of any desired number on shafts, supported by suitable framing. Insulation is provided at required points.

I will now proceed to describe in detail an embodiment of my invention in a machine for Welding the material already referred to, it being understood however that such description is illustrative merely, the structure being capable of being varied in manyways obvious to the mechanic. In this description I refer to the accompanying three sheets of drawing, in which Figure 1 is a sectional elevation, taken on the line 1, 1, of Fig. 2, in the direction of movement of the material to be acted upon.

Fig. 2 is a sectional elevation, at right angles to Fig. 1, and taken upon line 2, 2, of that figure.

Fig. 3 is a face elevation of one of the Welding rollers.

Fig. 4 is an edge view of the same partly in section.

Fig. 5 is a face elevation of the opposing Welding roller.

A suitable flywheel is Specification of Letters Patent. Patented J 1y 24, 191?, Application filed November 24, 1915. Serial No. 63,240.

Fig.6 is an edge view of the latter, partly -1n section.

Fig. 7 is a sectional view, taken on the line 7, 7, of Fig. 1 to show the insulation applied to the carrying arm of the welding roller, shown in Figs. 3 and 4.

Fig. 8 isa diagrammatic view of the working edge of the welding roller shown in Figs. 3 and 4.

In these several figures 1 represents the frame of the'machine, which'is provided with suitable bearings for the various parts of the mechanism, as will be more fully described hereinafter.

2 is a shaft extending crosswise of the machine, and mounted in bearings at 3, 3.

Upon the shaft 2, at desired intervals, are keyed the welding rollers 4. These rollers are composed of the solid rim portion 5, havin the groove 6, as shown in Fig. 6, and of t etwo centerportions 7, 8, which are to be bolted together by bolts or rivets passing through the holes 9, and of the insulation 10, which insulates the rim from the center.

11 is a flywheel upon shaft 2, by preference at one end thereof.

The companion rollers to the rollers 4, are shown at 12, see Figs. 3 and 4. These rollers havetoothed rims with grooves 13, registering with the analogous parts of rollers 4. Each roller 12, is mounted in a forked arm 14, pivoted at 15 to the frame 1, and carrying the roller at its free end. The pressure of the roller against its companion, or the material between them, is caused by the spring 16, which is seated in chairs 17 upon the arm and the frame. Adjustment may be made by the insertion of shims in the chairs. The rod 18 and hand-nut 19 serve to raise the wheel from its contact when it is -not desired to have current pass at that point.

Current is supplied to the rollers 4 by the mains 20 and brushes 21, which bear against the rollers. And, similarly, current is supplied to rollers 12 by the mains 22, and brushes 23 bearing against said rollers.

Brushes 21 and 23 may be insulated in any desired manner. I have shown inFig. 7 a means for insulating the. brushes 23. The members 24 are clamped upon the shaft 15 by the fianges25 and bolts 26. These members support the wheel carrying niemf her 1 1 to which they are secured by means of theabolts' 28, passing through non-conduct- ;ing sleeves 29; and the members- 14 and24 Te teeth a whlch are separated by the insulation. 30.

form the rim of the Iwheel- 12,'as'shown in Figs. 3, 4 and 8, are

staggered orlioiii'set, in the two flanges so that the current passes' alternately through one and the other.

rollers 4 and l2.v These idlers are provided operation the illlaterial is through -betviieen the welding. rollers, and the V shape flanges, shown in 1 my pending application abovel, referred- ,to,, are received by the groovesfi and '13 of the welding wheels from the filers-32. The toothed arrangement of the-rim of the wheel 12 and staggered disposition of these teeth cause welds to be formed at intervals on both sides of said V. a This is limited to the precise construction and, ar-

.importantas a continuous weld is not desirable and the intermittent welds are thus formed at offset intervals, v

Havin thus described my invention, and an embo. iment of it, in the full, clear and exactterms required by law, and knowingthat it comprises novel, useful'and valuable improvements in .the art towhich it pertains, I here state that I" do not Wish to be rangement of the several vparts, as herein set vforth, as the same maybe variously modified by a skilled mechanic without departing from the spirit of the invention.

- What I claim and desire to secure by Letters Patent of theUnited States, is the fel lowing, to-wit:v

Claims. 1. 1;. A welding machine comprising opposed welding rollers through which the current is passed to the material to be welded, one of said rollers being provided with .'toothed rims and a\ groove threbetween v adapted to form intermittent contacts, a

2. A welding machine comprising opposed welding rollers, one of said rollers provided with a central groove forming lateral rims, said rims-having intermittent contacts on their peripheries.

3. A welding machine comprising welding rollers between which the material to be welded is passed, one of said rollers "provided with a forked arm having a sprin to determine its pressure upon the materia 4. A welding machine comprising a series of Welding rollers havingtoothed rims arranged to form intermittent contacts, a. series of opposed. spring-controlled welding rollers, and means for supplying current to the rollers of said series.

5. A welding machine comprising opposed welding rollers adapted to press upon the material to be welded and forked arms for supporting said rollers out of contact with the material.

6. A welding machine comprising opposed welding rollers, one of said rollers beingadapted to press upon the material to be welded, a forked arm for supporting said roller, and adjustable means for holding said arm.

7. A welding machine comprising opposed welding rollers, one of said rollers having a double toothed rim, with a channel between the circumferential rows of teeth,

said roller being adapted to press upon the material to be welded, and a" forked arm for supporting said last roller out of contact i with the material.

8. A welding machine comprising opposed welding rollers, one of said rollers having a double toothed rim, the teeth thereof beingstaggered, and means for supplying current to the rollers, consisting of brushes connected to the supply main and engaging the face sides of said rollers.

In testimony, that I claim the foregoing I have hereto set my hand in the presence of two witnesses, this 18th day of November,

JQHN F. MAKOWSKI.

-Witnesses:

Ones. Homowar, J r., LEON BOILLOT. 

